Perforating and scoring attachment for printing-presses.



G. H. COLE.

PERFORMING AND SC ORlNG ATTACHMENT FOR PRINTING PRESSES. APPLICATION FILED MIG-2B. l9l1- 1 ,270,788. Patented July 2, 1918.

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IPEBFORATING AND SCORING ATTACHMENT FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented July 2, 1918.

7 Application filed August 28, 1917. Serial No. 188,567.

To all whom it may concern.-

Be it known that I, GEORGE H. COLE, a citizen of the United States, residing at Wenona, in the county of Marshall, State of llinois, haveinvented certain new and useful Improvements in Perforating and Scoring Attachments for Printing-Presses, of which the following is a description, reference being had to the accompanying drawings, forming a part.hereof. I

The object of the invention is to provide an alternative perforating, scoring and cutting attachment for printing resses which may be used in connection wit or in substitution for a gripper, for actuation by the platen or equivalent element of a printing press, such device being adapted for a ready interchan e of blades to suit the operation to be perf brmed, to be readily attachable to the press, and being of simple construction and capable of economical manufacture.

With these and similar objects in view, as will appear in the course of the following description, the device embodies a construction, combination and relation of parts hereinafter fully set forth, it being understood that changes in form, proportion and minor details may be resorted to, within the scope of the appended claim, without departing from the spirit of the invention.

In the drawing:

Figure 1 is a reverse or bottom plan view of the attachment.

Fig. 2 is a longitudinal, sectional view of the same.

Fig. 3 is a top plan View.

Figs. 4, 5 and 6 are side views of interchangeable blades for use in connection with the attachment.

Fig. 7 is a detail, transverse section on the plane indicated by the line 77 of Fig. 2.

Fig. 8 is a detail, transverse section on :i he plane indicated by the line 88 of Fig. 9 is a plan view in detail of one end of the device, showing the same partly in section on the line 99 of Fig. 2.

The device embodying the invention consists essentially of a main element 10 which may be used upon or in substitution for the ordinary gr'pper bar of a printing press and therefore, for convenience, may be termed a gripper bar, being provided at one end with an enlargement 11 having an opening 12; a blade 13 disappearingly mounted in a slot 14 in the main element, and a carrier 15 supporting such blade and in which the latter is removably seated so as to provide for an interchange of blades having operating edges ada ted to perform work of different 'nds as or example, perforating, scoring, cutting and the like.

The seat 16 in the carrier is of a length less than the carrier to sufliciently accommodate a blade of the maximum required length for any kind of work which may be contemplated with reference to the press, and the blade is held in the seat by a removable means for example as transverse pins or keys l7, and the operating edge whether of the perforating type shown in Figs. 4 and 5, or of the scoring or cutting type indicated in Fig. 6, may extend either throughout the full length of the blade, or only a portion thereof as shown in Fig. 4 and also in Fig. 2, the total length of the blade, however, being the same in all cases, so that the same securing means arran ed in the same way ma be em loyed for all blades.

he gui ing means for the carrier, to direct its movement to and from the main element or gripper bar, preferably consists of guide pins 18 in the form for example of screws terminally threaded as at 19 in the main element or gripper bar and operating in an opening in the carrier, said screws being headed as at 20 to form stops to limit the outward or upward movement of the carrier, or the movement from the main element or ripper bar, and in terminal arrangement wit the ends of the carrier are leaf sprin s 21 constituting means for yieldingly holding the carrier and therefore the operating blade in retracted or inoperative position, said springs beingsuitably attached as at 22 to the main element or gripper bar.

It will be understood that in the operation of the press to which the device of the invention has been applied, the successive actions of the platen serve to depress the carrier and force the operating ed e of the blade supported thereby into or t rough the paper or cardboard which is being manipulated; and also that an interchange of blades, to suit the prospective work may be made merely by withdrawing the locking pins or keys and after displacing one blade substituting another through the slot in the main element or gripper bar, followed of course by the replacing of the keys.

A sin le ide-pm is preferably used at each en 0 the carrier in alinement with the slot in the gripper bar and the springs engage the carrier at their over hanging extremities, beyond the guide-pins,-as by this arrangement the construction is simplified,

the possibility of binding of the" parts" in" operation is,

minimum, andthe gripper-bar and carrier may be made of the minimum width commensurate with The guiding the required strength.

' so as to offer no obstruction at eitherside of the plane of vided With a longitudinal slot, a blade dis appearingly mounted in the slot ofthe gripe per bar,a carrier of a length exceeding-that (epics of thls patent may be obtained for five cents each, by addressingthe I 1 Washington, D. 0."

eliminated or reduced to the l and retracting means are arranged engaging the or scoring attachment for.

' of said slot and provided with ma receiving seat registering and coextensive with the slot of the gripper bar, means for etachably securing guide pin connecting the gripper bar beyond each extremity of the seat in the former and on the line thereof for limiting the separation of the carrier and gripper bar, and springs extremities of the carrier -beand having stops yond the guide pins for yieldingly maintaining the separation of said parts.

This specification signed and ;W1tnessed this 24 day of August A. D. 1917.

Witnesses: J a a O. BINELsON, 7

Lyon KARR,

Commissioner; of Patents,

carrier With the GEO. 1-1;. o e,

the blade n said seat, a 7 l 

